6.  The applicants are Finnish citizens. Their dates of birth and places of residence are set out in the Annex.
7.  On 25 November 1995 a group of young people organised a sit-in in the premises of a department store in Helsinki, Oy Stockmann Ab (presently Oyj Stockmann Abp; henceforth “Stockmann”), criticising it for selling fur coats and thereby participating in cruelty to animals. Around the same time various pamphlets and posters had appeared in Helsinki, criticising the fur trade in general and Stockmann in particular. The group had to be forcibly removed from the store.
8.  In March 1996 Stockmann requested a pre-trial investigation into “the distribution to the public of printed matters purporting to be produced on the company’s behalf but which had not been commissioned by [it]”. Should the police find that a criminal offence had been committed, Stockmann requested that the matter be brought to the attention of the public prosecutor. The request was registered as a matter of suspected public defamation.
9.  In the ensuing pre-trial investigation 36 persons, including the applicants, were heard as suspects in respect of the offence of public defamation.
10.  On 11 April 1996 the police conducted a search at the home of Mr Miettinen, relying on chapter 4, section 1, and chapter 5, section 1 of the Coercive Measures Act (pakkokeinolaki, tvångsmedelslagen 450/1987). According to the minutes, the search was carried out for the purpose of an investigation into malicious damage (vahingonteko, skadegörelse) of which his room mates – A.L. (not an applicant) and Ms Karjalainen – had been suspected. The police seized pamphlets critical of Stockmann’s sale of fur products as well as letters related to Mr Miettinen’s participation in an association of anti-fur activists.
11.  On 13 June 1996 the police searched the homes of Ms Mikola and Ms Soini. According to the minutes, the searches were carried out “for other investigation purposes”. The police seized pamphlets and documents related to Ms Mikola’s participation in the same association of anti-fur activists. At the home of Ms Soini the police seized similar pamphlets, diaries from the years 1994-1995 and a telephone note book.
12.  On 20 June 1996 the police returned to Ms Mikola some of the seized material, retaining eight pamphlets stating, inter alia: “Stockmann supports trading in carcasses” (Stocka [Stockmann] tukee raatokauppaa).
13.  On 26 June 1996 the police returned two of Ms Soini’s diaries, keeping a third one until 9 September 1996.
14.  On 18 October 1996 the District Court (käräjäoikeus, tingsrätten) of Helsinki maintained the seizures of Ms Mikola’s and Ms Soini’s materials until 31 December 1996. The seizures were later extended until 31 January 1997.
15.  On 20 November 1996 the pre-trial investigation ended with a signed report. On 10 January 1997 applicants Sami and Sanna Seppilä, Soini, Uosukainen, Karjalainen, Särkisilta, Kaihovaara, Pelkonen, Riska, Karlstedt, Salonen, Miettinen and Mikola were charged with a violation of Stockmann’s domiciliary peace (kotirauhan rikkominen, hemfridsbrott) and a violation of the Police Act, both committed on 25 November 1995. All except applicants Sami Seppilä, Uosukainen, Karlstedt and Miettinen had been minors at the time of the offence.
16.  At the same time, applicants Soini, Therman and Mustonen were charged with having defamed Stockmann in public while being minors. Applicants Uosukainen and Karjalainen were charged with the same offence but were no longer minors when committing the offence, namely between the summer of 1995 and the summer of 1996. In the alternative, all except Karjalainen were charged with common nuisance.
17.  Mr Purmonen was charged with incitement to one or the other of those offences.
18.  In addition, applicants Sami Seppilä, Soini, Särkisilta and Salonen were charged with some further offences.
19.  On 2 April 1997 Ms Soini requested that the seizure of her possessions be lifted. The District Court having maintained the seizures, she appealed to the Court of Appeal (hovioikeus, hovrätten) of Helsinki.
20.  On 15 May 1997 the police lifted the seizure and returned the remaining material to Ms Soini and Ms Mikola. On 17 July 1997 the Court of Appeal found that since the police had already returned the material seized from Ms Soini it was not necessary to examine her appeal.
21.  Meanwhile, on 18 June 1997 applicants Sanna Seppilä, Soini, Uosukainen, Särkisilta, Kaihovaara, Pelkonen, Riska, Karlstedt, Salonen, Miettinen and Mikola were convicted of violation of Stockmann’s domiciliary peace and sentenced to forty, fifty or sixty days’ conditional imprisonment respectively. Mr Sami Seppilä was likewise convicted – except on one count not relevant to this case – and given a longer conditional prison sentence coupled with a fine.
22.  Applicants Purmonen, Therman and Mustonen were acquitted of all charges.
23.  On 22 June 1999 the Court of Appeal reversed the District Court’s judgment by acquitting all twelve convicted applicants in so far as they had been found guilty of violating domiciliary peace. The court considered that Stockmann’s shop premises, being accessible to the public, could not be considered a domicile for the purposes of the relevant provision of the Penal Code. While upholding these applicants’ convictions of one or several other offences the court reduced their sentences to fines.